Elektra is a story of revenge, of children on their mother, and the grief and fury of a woman when her filial duties are split down the middle.
When the victorious King Agamemnon returns from Troy, carting his new mistress Cassandra in tow, his wife Clytemnestra murders him. This initial act of revenge sparks off a long held grudge, kindled in the exiled and presumed dead Orestes, twin brother of Elektra.
Just like Sophocles, Euripides was inspired by Aeschylus's great tragic cycle, the Oresteia. Unlike Sophocles (whose focus was a battered and vilified victim of circumstance, fully justified in seeking revenge), Euripides paints a character with a more confused mindset, one who cannot be fully trusted, not even by her returning twin and brother-in-arms. Euripides allows no easy judgement, forcing his audience to pick over the bones of a moral dilemma, as bloody as it is tragic.